Lock seam elbow machine



` W- THOM. 6 Sheets-Sheet 1.,

LOCK SEAM ELBOW MAGHINE. ,652. Patented'June 28, 1887.

(N0 Model.)

,2 1 a 1 z d 1 ,.1 y l I d (No Model.) 6 Sheets-Sheet 2.

W. THOM.

` LOCK SRAM ELBOW MACHINE. No. 365,652. l Patented June 28', 188']u P11313. i gf I 13 GII 3.1 v.2

WI TJV' ESSE S. I

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N. PETERS. PhoxoLilhogmpner. wnmngum. D.C.

(No Model.) 6 Sheets-Sheet 3. W. THOM.

:LOOK SEAM ELBOW MACHINE.

Patented June 28, 1887.

INVENTOR.

WITNESSES.

N. PETERS.'Phowmhogmphun wnshingwn. D. Cv

6 Sheets-Sheet 4.

l(No Model.)

W. THOM.

LOCK SEAM ELBOW MACHINE.

,652. Patented June 28, 1887.

8"127V VEN TOR.

(No Model.) 6'Sheets -Sheet 5. W. THOM.

'LOCK SBAM ELBOW MACHINE. No. 365,652. Patented June '28.' 1887.

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W. THOM.. I y 6 Sheets-Sheet 6..

LOCK SEAM ELBOW MACHINE.

No. 365,652. PatentedJuneZS, 1887.

vUNITED vSTATES PATENT VILLIAM THOM, OF INDIANAPOLIS, INDIANA.

'LOCK-SEAlVl-ELBOW MACHINE.

SPECIFICATION forming part of Letters Patent No. 365,652, dated .Tune 28, 1887.

Application filed February 1, 1886. Serial No. 190,423.

To @ZZ whom it mag/concern:

Be it known that I, WILLIAM 'T1-IOM, of the city ol' Indianapolis, county of Marion, and State of Indiana, have invented certain new and useful Improvements in Lock-Seam-Elbow Machines, of which the following is a specification. i

My said invention relates to that class of machinery by which the seams uniting the several sections of stove-pipe elbows are finished or closed down and the elbow thus completed.

It consists in an improved machine for the purpose, whereby the joints of lock-'seam elbows are so closed down or completed.

Referring to the accompanying drawings, which are made a part hereof, and on which similar letters of reference indicate similar parts, Figure 1 is a vertical sectional view through a machine embodying my invention on the dotted line 1 1 in Fig. 2, the formingwheels, their carriers, and the operating mechanism therefor being omitted; Fig. 2, a similar View on the dotted line 2 2 in Fig. 1; Fig. 3, a detail central section through the central shaft or standard and adjacent or connected parts on the dotted line 3 3 in Fig. 2, being similar in part to Fig. 1 Fig. 4, a top or plan View of the complete machine; Fig. 5, atop orl plan view of the expansion-head and clamping-jaws, the cone and cap portion being removed; Fig. 6, a horizontal sectional view looking upwardly from the dotted line 6 6 in Figs. 1 and 2; Fig. 7, a detail central sectional view of the cone and inside head or clamp on the dotted line 7 7 in Figs. 5 and 6; Fig. 8, a detail vertical section on the dotted line 8 8 in Figs. 4 and 9; Fig.,9, a horizontal sectional View on the dotted line 9 9 in Figs. 8 and 10; Fig. 10, a detail vertical sectional view looking toward the right from the dotted line 10 10 in Fig. S; Fig. 11, a top or plan view of one of the forming-wheels and its carrier, similar to a portion of Fig. 4t.; Fig. 12, a longitudinal vertical section of the same on the dotted line 12 12in Figs. etand 11; Fig. 13, a horizontal sectional view through the lower part of the machine, looking downwardly from the dotted line 13 13 in Figs. 1 and 2; Fig. 14, a detail sectional view looking toward the left from the dotted line 14.- 14 in Fig. 13; Fig. 15, a horizontal sectional View looking upwardly from the dotted line 15 15 in Fig. 18; Fig. 16,

(No model.)

a vertical sectional View looking to the left from the dotted line 16 16 in Fig. 18; Fig. 17,

a horizontal sectional View looking downwardly from the dotted line 17 17 in Fig. 16; Fig. 18, a View indicating the position of the pipe-elbow in the machine while being operated upon, and Figs. 19, 20, and 21 detail views illustrating the operation ofthe several 4forming-wheels on said seam.

In said drawings, the portions marked A represent the framework of the machine; B,

the mainor driving shaft; C, a counter-shaft;

D, the upper revolving easing or framework; E, the upper inner cylinder-head or framework; F, a central stationary rod or shaft mounted in the lower portion of the main frame-work A, and extending up and supporting the casing E; G, a central expansion-head or clamp carried by the frame E; H, a cone for operating the movable sections of said head or clamp; 11213, three forming-wheel carriers, upon which the forming-wheels, which operate upon the elbow-seams, are mounted; J, rods by which, through various connections, these carriers and the cone are operated; and K, a treadle fortripping the lever,whieh holds the mechanism which operates the jaws, expansion-head, clamps, and forming-wheels out of operation until the proper time for them to operate has arrived.

The frame A isa hollow casting of the general form, eXteriorly, of a frustum. of a pyramid, and contains bearings for the shafts B and C, the extended hollow hub D', or shaft of the upper frame-work, D, and generally serves to support the mechanism of the machine. The shaft B rests in its bearing, carried by the frame A, and has a pulley or pulleys, B B, on its outer end, and a spur gearwheel, b', and a miter gear-wheel, b2, on its inner end, through which it drives the other mechanism.

The shaft C is mounted in bearings,as shown, in the frame-work A, (see particularly Fig. 2,) and is driven by the spur gear-wheel b on the shaftB and the spur gear-wheel c', (which is mounted and runs loosely on itself,) when brought intoanengagemcnt with an arm, C', by means of a clutclrpin, c2, therein, as will be hereinafter more fully described. Vhen this shaft is caused to revolve, the cam-wheels C3 thereon operate upon the lever A', which,

IOO

through the ring a, operates to pulldown upon the rodsv J and operate the expansion-head, clamps, jaws, and forming-wheels, as will be hereinafter more fully described.

The frame-work D is in effect, a hollow cylinder having an extended hollow hub, D', which rests in a vertical bearing in the upper portion of the frame A and surrounds the rod or shaft F. To this extended hollow hub or shaft is secured the bevel gearwheel d', through which and through the similar gear-wheel, b2, this upper frame-work or cylinder is driven i rom the shaft B,and is thus caused to revolve, while the inner mechanism, mounted on the upper end of the rod F, remains stationary.

The upper inner cylinder-head, E, is rig idly mounted on the upperend of the station, ary rod or shaft F, and, like the upper frame- D, is substantially a hollow cylinder; but, unlike said frame D, it has two pivoted sides carrying jaws E', (see particularly'Figs. l and 5,) which can be spread out somewhat, while the other two sides or jaws remain/stationary.

By this means the opening is made to acconr modate the shape of the pipe while it is being introduced, which, because ofthe angular character of the pipe-sections, is somewhat oblong instead of perfectly round. These sides are hung upon pivots e,an`d are operated by a partially cone-shaped block, j, secured tothe rods J, as shown most plainly in Fig. l, and by springs c2, operating reversely to said coneshapedblock. The arms FF, which are connected to said pivoted sides,and through which the block j operates thercon,are constructed to` spring somewhat, and thus insure a close grip on the pipe while it is being operated upon.

These spring-.arms are also made adjustable by means of set-screws e3 passing through the lowerends of the pivoted sides and resting against them.

The rod or shaft F is rigidly secured at its lower end to the bridge-tree A2 and extends up through the hollow hub or shaft D to near the upper end ofthe 1nachine,where the cylinderhead E is secured thereto. Its sides arev grooved throughout their whole length, to receive the rods J, by which the partially coneshaped block j and the cone H are operated.

The head G is a solid casting mounted on the inner portion ofthe cylinder-head E, and ea rries three wide jaws, G2, Aand three narrow jaws, G3, which, together,when forced outinto position, form a circle, and bear closely against the entire inner side ofthe pipe being operated upon. The position of thesejaws when in operative position is shown most plainly by the full lines in Fig. 5, and theirposition when released rand out of operation is shown bythe dotted ing jaws, or, rather, upon central collars or enlargements on the bolts, 1f/(see Fig. 7,) is a conering, G', andthe bolts g, which pass up through the slots in the jaws, also pass through and secure this cone-ring in position.

The cone-shaped head H is secured to a rod, 7L, which passes down through the casting G and the inner portion of the cylinder-head E into alongitudinal orifice in the upper end of 7- the rod F, and has a head on its lower end, as shown in Figs. l and 2, and also a pin, h', as also shown in said figures. A cap, j', surrounds this rod h, and between this cap and the head of said rod is interposed a coiled spring, h2. The rods J are secured to this cap y, and operate to move it up and down, whereby through the cone H andconnections the sliding jaws G2 and Giare operated. Said sliding jaws, when released from the pressure of the cone, are drawn inwardly or retracted toward the center by springs g', which are attached thereto, as shown most plainlyin Figs. 6 and 7. j

The three forming-wheel carriers l, 12, and

I" are mounted iu ways or slides in or secured to the upper plate of the frame D, Vand carry the forming-wheels i', 2, and t, which operate upon the-seams which secure the pipe-sections together in the following manner: The carriers l and l3 are substantially alike, and are operated in the saine Inanner, and the construction of these two carriers is best shown in Fig. 8. The form of the wheel t, which is carried by the carrier l', is somewhat different from that ot' the wheel 3, carried by the carrier l, the former being beveled inwardly from the upper edge,as shown in Fig. l9,while the lat- IOC ter is grooved or hollowed'out on the edge, as f shown in Figs. Sand 2l. These carriers consist of two parts, the lower-of which rests upon the plate forming the top of the upper frame or cylinder, D, and slides thereon, and the upper portion ofwhich is secured to said lower portion by means of bolts or machinescrews t", which pass down through slots in said upper portions and screw into said lower portions. bmall grooves are formed transversely in the upper surfaces of said lower portions, and in one of the grooves rests a small pin or roller, t5, interposed between said two portions, and by means of this roller acting as a fulcrum or pivot-bearing the relative position of said upper portion carrying the wheel may be varied, and said upper portion may be adjusted longitudinally on said lower portion by means of the slots therein. There are several ol' the transverse grooves in the upper surface of said lower portion, in order that said pin or roller may be moved from one tothe other as said upper portion is adj usted back and forth, and thus maintain its relative position to said Lipper portion. These carriers are operated in the following manner: rlhe rods I, having beveled upper ends, are mounted in bearings in the frame D, as shown, and the points of said beveled ends extend up into ori- IIO tices in the rear ends of the lower portions of said carriers. At or near the lowei,` ends these rodsl come into engagement with the pivoted levers @'which in turn extend across to and engage with the partially eoneshaped block j, attached to the rods J. As said rods J are pulled down,this block comes in contact with the inner ends of these levers, and through them operates to force said rods I upwardly, and the bevels on the upper ends of said rods operate upon and force said carriers inwardly, and the operating-wheels are thus brought into contact with the seam of the pipe sections it is intended to operate upon. When the pull on the rods J is released, the springs i, surrounding the rods I, operate to force said rods l downwardly, thus releasing said car- 4riers,and allowing'them to slide back and carry the forming-wheels out of engagement, which they are caused to do by springs i7, (see Fig. 9,) provided forthe purpose. The lower portion ot' the carrier l2 is much like the lower portions of the carriers l and 13, except that it is divided into two parts, the upper one of which is secured to the lower portion by a hinged joint, p, and is adapted to rock on said joint to such extent as is desirable, this being determined by the adj Listing-screws is i. The upper portion proper of said carrier is Secured to said upper part of the lower portion by a bolt or machine-screw,i*,siniilar to the correspondiugboltsorn'iachine-screws ofthe other carriers. This carrier is also slid forward in thesaine manner as are the carriers l and l, but there is an additional movement given to the upper portion by means of the hinged or pivoted arrangement just described and a supplemental rod, fil, which is mounted in a groove and slot in the-rod I, and is secured thereto by a spring, i, as shown in Fig. l2.

The operation, so far as moving the whole structure of the carrier horizontally is concerned, is, as before stated, the same as in the other cases; but this sliding rod il", as the rod is forced upwardly, comes in contact with the under side of the rear of the upper portion just as it reaches the proper point in its forward movement and tilts the inner end, carrying the forming-wheel 2 down onto the scam being operated upon, and thus presses downwardly as well as inwardly at the same time on said seam. rlhe spring i, when the limit of this movement is reached, gives way and ohviates any danger of breakage, not withstanding the continued upward movement of the rod l. The upper portion of this carrier l2 may be given a very exact position relatively to the lower portion by means of the adjusting-screw W, which is providedwith a collar and mounted between the parallel projections on the upper part of the lower 1.ortion, as will be plainly understood Vfrom an examination of Fig. l2.

On the rods l, near the lower ends, are sec ired adjustable bearing-plates il, with which the pivoted leversr' come in Contact. The purpose of these adjustable plates is to cause the ibrming-wheels to come in contact with the seam being operated upon in the desired succession, and therefore the bearing-plate on the rod which operates upon the arin Iis set lower than that upon the rod which operates the carrier l2, and the plate upon the rod which operates the carrier l is higher than either of the others, so that, as in its downward nievement the block j operates these levers z', the iirst rod to be operated will be that which operates the carrier I, as the forming-wheel carried by said carrier is the one which should rst operate in forming the seam, and so on in the succession indicated.

The rods J, as before stated, are located in grooves in the sides ot' the rod or shaft F, and

extend from the upper portion ofthe machine I down through said grooves to the lower portion, where they are connected to a collar or ring, c', which surrounds said rod or shaft F, which collar or ring is connected by appropriate pins to thepivoted lever A', which said lever carries the roller on which the eamwheels C: operate. Said cam wheels are mounted rigidly on the shaft C, which shaft also, as before stated, carries a loosely-running spur gear-wheel, c', 011 the hub of which are several projections, ci. An arm, C, is rigidly mounted on said shaft C alongside of the hub of said wheel c', `and carries (mounted in a suitable orifice therein) a clutch-pin, c?, seated upon a spiral spring, as shown in Fig. 15, and connected with a pivoted lever, C, by means of a small pin, c". This lever (see Fig. 13) extends back and curves around in contact with another lever, C4, which is pivoted to the frame-workv A by a pivot, e5, and 'which when in engagement holds said lever C2 in such position as to hold the clutch-pin out of engagement with the projections c on the hub oll the wheel cf.

The treadle K is pivotcdy lo the frame A and extends ont into a foot-piece upon the outside. A rod, K', resting in bcaringsa2 ai on the frame-work, is pivoted thereto and connected at its upper end to a spring, k', which is in turn secured to a lug, a", near the upper portion of the frame A. Upon said rod K is a pivoted catch, lr, which engages with the outer e'nd of the lever C, and thus, when said rod is pulled down by the operation of said treadle,the inner end of said lever C4 is raised up and released from engagement with the lever C, and thus the clutch-pin c2 is permitted t0 be operated, by the spring on which it is seated, to be forced into engagement with the projections c3 on the hub ot' the wheel c', and said wheel being in continual rotation will thus drive said shaft until said clutch-pin is withdrawn from such engagernent which is accomplished in the following manner: As the arm C revolves with the shaft C the lever CA2 thereon will again come in contact with the projecting pin on the lever C and be forced around on its pivot until the clutch-pin c2 is IOO withdrawn from engagement, when of course the revolution of the shaft C will cease. The lever C* is pivoted to the side of the frame A by a pivot, c5, and its inner end is secured in proper position to come into engagement with the curved end of the lever C2 when said lever C4 is not pulled down by the operation of the treadleK and its attachments by a lug, a, which extends out from the side of the frame to beneath the end of said lever C".

The operation of my machine may be briefiy recapitulated as follows: The main shaft being set in motion by the motor provided therefor, the upper cylindrical frame, D, and the wheel c are revolved thereby. An elbow in the proper condition being then introduced into the machine, (see Fig. 18,) the operator steps on the foot-piece of the treadle K, which, as before described, releases the clutch mechanism and causes the counter shaft C to revolve. The cam-wheel C3 on said shaft U then operates to pull down the rods J, and,they,through the .block j, Operate through the arms E'2 to force in the pivoted sides of the cylinder-head E, through the pivoted levers i, to operate the rods I, and through them the several sliding carriers I I2 I3, carrying the forming-wheels, and through the rod It to pull down the vertically-moving cone-shaped head H and force out the several sliding jaws forming the inner clamp. 0r expansion head, thus completely clamping the pipe-section both inside and out and bringing the. forming-wheels into contact with the seam, all at one operation.

As will beseen by an examination of the A drawings, particularly Fig. 5, the edges of the several jaws of the inner clamp or expansionhead when forced out to their extreme position just form a`perfect and complete circle, and thus bear equally at all points upon the inner surface of the section of pipe being operated upon, leaving no interstices or vacant spaces between them, which, as will be readilyunderstood, is a considerable advantage, as all portions of the pipe are thus supported equally. When the cone H is raised, the springs g (see particularly Fig. 6) retract these jaws into the position shown by the dotted lines in Fig. 5, thus leaving a sufficient space for the introduction of the pipe. The forming-wheels, by

- reason of the adjustment of theconnections between the pivoted levers and the rods I, come successively into contact with said seam, the wheel ji first, which rounds over the iiange somewhat, the wheel i2 second, which takes the seam where left by the forming-wheelz" and closes or curls it down and turns in the edge, and the wheel ilthird, which comes up against theseam, which is now nearly finished, and closes the parts tightly together, thus making a perfect lock-seam.

Efforts have been made to form a lock-seam elbow, but with indifferent success. I have found by experiment that to make such a lock-seam joint a revolving carrier having a curved former mounted thereon so as to movev inward and downward, to curve and spin over the edge of the outward-hooked flange nested therein, as shown in Fig. 20, is an indispensable requisite, because of the angular or curved form ofthe pipe. A straight-moving tube will not form the joints around the throat of the elbow, and therefore the process is inseparable from the mechanism.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In an elbow-machine, the combination, with an expanding central clamp and an outside joint or seam-support, E', of a revolving wheel`carricr, Il, with mechanism for moving the same inwardly and downwardly for turning in and compressing down the edge-seam, substantially as described.

2. In an elbow-machine, the combination of a central clamp, an outside seam-support, and the revolving carrier I2, mounted and connected by a hinge-joint with the lower portion of the carrier, so as to permit the roller or former to be moved inward and downward in tbe act of turning the edge of the seam, substantially as described.

3. In an elbowmachine, the combination, with a central clamping mechanism and anouter seam-support, of a traveling former constructed and operated to move upon the curved hook-flange of one section of the article to be seamed and force it over and down into the flange of the other section, substantially as described. y

4. The combination, in a machine for closing down or finishing the seams which unite sections of sheet-metal pipe, of a lower stationary frame, an upper revolving frame or Vcylinder carrying the forming-wheels, a central stationary rod or shaft carrying the expansion clamping-head, and vertical sliding rods laid in grooves in said stationary rod or shaft, where by the mechanism in said head and said revolving upper frame or cylinder may be operated from below.v v

5. The combination of the main shaft, a counter-shaft, a wheel loosely running on said counter-shaft and driven from said main shaft and having projections on its hub, an arm, C', rigidly secured to said countershaft, a springseated clutch-pin therein, a curved lever pivoted on said arm C', a lever pivoted to the frame-work and engaging with the curved end of said lever at one end and withy mechanism for tilting or tripping it at the other, camwheels C,mountedon said counter-shaftandengaging with mechanism connected to the sliding rods J, and said sliding rods, whereby as said clutch mechanism is operated'said rods will be pulled down and thus operate the eX- pansion-head and other mechanism, substantiallyas shown and specified. y,

6. The combination of the main shaft, a counter-shaft, a wheelloosely mounted on said counter-shaft and. driven from said main shaft, la clutch mechanism whereby said shaftpmay IOO 3o stationary shaft, F, a central cylinder, E,

be upon occasion driven by said wheel, a camwheel mounted on said shaft, a stationary central rod or shaft having grooves in its sides, rods placed in said grooves and connected to a ring'or collar at the lower end and to the operating mechanism at the upper end, aconnection between said ring or collar and said cam-wheel, whereby when said shaftis revolved said rods may be caused to operate the mechanism connected thereto, substantially as set forth.

7. The combination of a lower stationary frame, a central stationary shaft therein, an upper revolving` frame or cylinder having an extended hollow hub, gearing' connected to and driving said frame through said hollow hub, forming wheels and carriers therefor mounted upon the top ofsaid revolving upper frame or cylinder, a central cylindrical head or clamp mounted onthe upper end of said central stationary shaft, an inner expanding-head or clamp secured to the inner portion of said cylindrical head, rods extending downv alongside said central stationary shaft, connections vbetween said rods and said expanding-head or clamp and forming-wheel carriers, and mechanism for giving said rods a reciprocating movement.

8. The combination of reciprocating rods J, having a block, j, attached thereto, a central mounted thereon, a head, G, mounted on the inner portion of said cylinder E, sliding jaws thereon which form an inner clamp, and jaws 0n said cylinder E, which form an outer clamp, arms extending from said outer jaws and adapted to come in contact with the block j, and a cone, H, connected to said rods J and adapted to expand said inner jaws, substantially as set forth.

9. The combination, in an expansion-head, of a base, G, sliding jaws Gr2 G, mounted on said base, a cone for expanding said sliding jaws, and springs g', for retracting them, all substantially as shown and described( 10. A clamping-head consisting of a solid base, six sliding jaws mounted thereon, three of said jaws being wide and secured in position by bolts passing through slots therein, and three being narrow and filling the interstices between said wide jaws, the outer edges of said several jaws being formed so that when they are expanded they will together form a complete circle, substantially as shown and described. j

1l. An expansion or clamping head consisting of a base, sliding jaws mounted thereon, and an upper conical ring connected to said base by bolts passing through slots in said jaws, said ring being supported by collars or enlargements on said bolts, substantially as shown and described.

12. The combination, with a clamping-head consisting, essentially, of expanding jaws, of an inverted cone for expanding said jaws, a rod upon which said cone is mounted, a head on said rod, a collar or ring surrounding said rod, a spring interposed between said head and said collar, whereby said operation is rendered elastic and yielding, and rods connected to said collar by which said rod and cone are operated, substantially as described. y

13. The combination of a clamping head or cylinder, E, having pivoted sides carrying jaws E', arms E2, secured to said pivoted sides, recprocally-moving rods J, and a vertical coneshaped block, j, which fcomes in contact with and operates said arms and through them said pivoted jaws, substantially as set forth.

14. |The combination of the head or cylinder E, the pivoted sides carrying clamping-jaws therein, the arms E2, secured to said pivoted sides, constructed of spring metal, and adjusting-screws e3, for adjusting said springarnis, substantially as set forth.

15. The combination of the head or cylinder E, pivoted sides therein carrying clampingjaws E', arms on said pivoted sides, reciprocally-moving rods carrying a block, j, and springs e2, operating reversely to the operation of said block on said arms, substantially as set forth.

16. The combination of the vertically1noving rods J, the inverted cone H, the rod l1. therefor, extending down between said rods J and having a head on its lower end, a ring or collar, j', surrounding said rod L and connected to said rods J, a spring', interposed between the head on the rod h and said collar j, and a pin, h', passing through the rod h, substantially as set forth.

17. The combination of the vertically-moving rods J, the block j thereon, the pivoted levers i, mounted in bearings in the frame or cylinder D, vertically-moving rods I, having cam-shaped upper extremities, and formingwheel carriers with which said upper ends engage, substantially as set forth.

18. The combination ofthe vertically-moving rods J, the block j thereon, the verticallymoving rods I, which operate the formingwheel carriers, adjustable plates i on said rods I, and pivoted levers i, bearing at one end against said adjustable plates and at the other end against said block j, whereby said rods I are operated from said rods J, substantially as set forth.

19. The combination, with the forming-wheel carriers having openings therein, of verticallymoving rods I, having cam-shaped upper ends which enter said openings, whereby as said rods are forced upwardly said forming-wheel carriers will bc forced inwardly, substantially as set forth.

20. The combination, with the forming-wheel carriers, of vertically-moving rods l, having camshaped upper ends for forcing them forward, and retracting-springs 7, for drawing them backward when released from the operation of said vertically-moving rods l, substantially as set forth. Y

21. The combination of the forming-wheel IOO carriers, vertically-moving rods l, for operati ng the same, pivoted lever-connections, whereby they are operated to move upwardly by the :rods J; and springs 6, whereby they are retracted when released from the operation of said rods J.

22. A forming-wheel carrier consisting of two portions secured together by machinescrews or bolts, one portion having transverse grooves in its surface, and a pin or roller, i5, adapted to rest in one of said grooves, whereby the relation of the upper to the lower portion may be adjusted, substantially as set forth.

23. The combination of a lower portion mounted and adapted to slide in ways on the upper revolving frame or cylinder, an upper portion adjustably secured thereto, the two forming a forming wheel carrier, and the forming-wheel mounted in the point of said upper portion and operatedthereby, substantially as shown and specified.

24. The combination of a series of formingwheel carriers and forming-wheels mounted therein, two of which are moved inwardly on a horizontal plane during the operation of the machine and the other of which is moved inwardly and also downwardly, thus operating to compress the seam being operated upon in both directions, substantially as set forth.

25. The combination of two portions hinged together by a hinge-pivot, p, and .forming a formingwheel carrier, a formingwheel, fr, mounted on the upper portion of said carrier,

avertieally-1noving rod, [,having a cam-shaped upper end for moving said forming-wheel carrier inwardly, and a second rod, il, secured to the first-,adapted to come in contact with the under side of the upper portion of said forming-wheel carrier and force its inner end downwardly, substantially as described, and for the purposes specified.

26. The combination of the forming-wheel carrier l2, the lower portion of which is constructed of two parts and hinged together and the upper portion of which is longitudinally adjustable thereon, the screws i* and i, by .which said adj ustmentis effected, the hinge p,

by which the two parts of said lower portion are secured together, and the adjustable screws 11B and i, by which the movement of the upper part on said hinge is determined, substantially as set forth.

27. The combination of three forming-wheel carriers, each carrying a {owning-wheel, and three vertically-moving rods, I, for operating the same,each of which is provided with an adjustableplataz', said plates being arranged in different positions, whereby all of said vertically-moving rods can be operated from the same power or point and yet be operated suecessively, and the forming-wheel z" be thus first brought into operation,theforming-wheel @"2 second, and the-forming-wheel i3 third, substantiallyas set forth. v V

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 28th day oiJanuary, A. D. 1886..

wir. fri-loir. [1.. s]

In presence of- C. BRADFORD, CHARLES L. THURBER. 

